

Karen Khachanov defeated Jan Lennard Struff 3-6 6-3 7-6 in the Hamburg round of 32 on clay. The result followed the form book — Karen Khachanov came in ranked #22. Karen Khachanov extended the head-to-head to 3–2.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2025-10-13 | Almaty | R16 | hard | Jan Lennard Struff | 4-6 7-6(5) 6-3 |
| 2020-09-21 | Hamburg | R32 | clay | Karen Khachanov | 7-6(5) 4-6 7-5 |
| 2019-10-28 | Paris Masters | R32 | hard | Jan Lennard Struff | 7-6(5) 3-6 7-5 |
| 2019-06-17 | Halle | R16 | grass | Karen Khachanov | 6-3 3-6 6-4 |
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About
Averages over each player's completed matches in the selected window (200 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
The Umpiry Score combines match-context factors — matchup, form, fatigue, travel and motivation — into a single 0–10 score, updated daily. Read how it works.
Khachanov K.: 8 days rest · 3 matches (14d) · Struff J.: 5 days rest · 2 matches, 87 games (7d). Higher means fresher. About